Analyzing of coordinate operational of UPFC based on matrix converter and wind turbine generator under unbalanced load

Abstract

The flexible ac transmission systems (FACTS) were installed on power systems in order to improve performance of power system such as voltages, active power flows, reactive power flows, and etc. One of the these devices is unified power flow controller based on matrix converter (UPFC-MC) that space vector modulation (SVM) technique can be used switching pattern of its nine-bidirectional switches. In the other hand, distributed generation (DG) systems, such as wind turbine generator farm (WTGF), were installed on power system to provide needed demand energy. This paper presents two coordinate operating schemes for UPFC-MC and WTGF under unbalanced loads. By applying UPFC-MC and WTGF under two proposed controlling methods improve transmission lines power flows were increased. The validity of proposed schemes is reconfirmed by simulation results with MATLAB/Simulink software.